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Home >> Chevrolet >> 2015 >> Impala Limited LS >> Repair and Diagnosis >> External Pages >> Different car >> Section 114 (Object Detection System And Pedestrian Protection System) >> Diagnostic Information and Procedures >> Parking Assist System Malfunction >> Circuit/System Testing >> Parking Assist Switch Indicator Circuit Malfunction

Parking Assist Switch Indicator Circuit Malfunction

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  1. Ignition OFF, disconnect the harness connector at the S48A Multifunction Switch - Instrument Panel, Ignition ON.
    NOTE: Verify interior dimming is turned all the way bright.
  2. Test for greater than 11 V between the terminal 3 and ground.
    • If greater than 11 V 
  3. Connect a test lamp between the control circuit terminal 6 and B+.
  4. Verify the test lamp turns ON and OFF when Commanding the Park Assist Switch Indicator On and Off with a scan tool.
    • If the test lamp is always OFF 
    1. Ignition OFF, disconnect the harness connector at the K41R Rear Parking Assist Control Module.
    2. Test for less than 1 V between the control circuit and ground.
      • If 1 V or greater, repair the short to voltage on the circuit.
      • If less than 1 V
    3. Ignition OFF.
    4. Test for less than 2 Ω in the control circuit end to end.
      • If 2 Ω or greater, repair the open/high resistance in the circuit.
      • If less than 2 Ω, replace the K41R Rear Parking Assist Control Module.
    • If the test lamp is always ON 
    1. Ignition OFF, disconnect the X1 harness connector at the K41R Rear Parking Assist Control Module.
    2. Test for infinite resistance between the control circuit and ground.
      • If less than infinite resistance, repair the short to ground on the circuit.
      • If infinite resistance, replace the K41R Rear Parking Assist Control Module.
    • If the test lamp turns ON and OFF 
  5. Test or, replace the S48A Multifunction Switch - Instrument Panel.
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